bullard



(No Model.)

2--Shgets8heet 1. J. 1-1. BULLARD.

APPARATU SEOR BURNING HY DROOARBON FUEL. 1 I0.419,410. h Patented Jan.14, 1890.

j L i OIL STORAGE 2 SheetsSheet 2.

(No Model.)

J. H.. BULLARD. APPARATUS FOR BURNING HYDROGARBON FUEL.

Patented Jan.-l 4,'18 90.

fII'IIII/II/IIIIIIIL N PETERS, Phulo-blhn'grupher. Wiuhinglum 0,0.

UNITED STATES PATENT OFFICE.

JAMES H. BULLARD, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO THE AERATEDFUEL COMPANY, OF SAME PLACE.

APPARATUS FOR BURNING HYDROCARBON FUEL.

SPECIFICATION forming part of Letters Patent No. 419,410, dated January14, 1890.

Application filed July 1, 1 88 9.

To all whom it may concern:

Be it known that 1, JAMES H. BULLARD, a citizen of the United States,residing at Springfield, in the county of Hampden and State of 3Massachusetts, have invented new and useful Improvements in Apparatusfor Burning Hydrocarbon Fuel, of which the following is a'specification.

This invention relates to improvements in [O apparatus for thecombustion of hydrocarbon fuel, and particularly pertains to automaticmachinery comprised in the hydrocarbonburning system for pumping theliquid fuel I intoaservice-tank to secure the properheight of theoil-level therein, the said pumping machinery becoming inoperative whensuch level has-been attained, but again becoming operative to-pump whenthe liquid in the tank falls below the proper level; and the inventionconsists in the combination of vari ous contrivances and theirarrangement in relation to each other, all substantially as will behereinafter more fully described, and set forth in the claims.

2 5 Reference is to be had to the accompanying drawings, in which Figure1 is a view in side elevation, with some parts broken away for clearerillustration, of a forgerfurnace to which aerated hydrocarbon issupplied for 0 combustion therein through the burner, which is shownadjacent to said furnace, an oilstorage tank and an oil-service tank,and a pump, conduits between and connecting said tanks and pump,automatic mechanism for controlling the action of the pump, anaircompressor, and conduits leading from the same to the burner,connected to which b 'irner a conduit is also shown which leads theretofrom the said service-tank. Fig. 2 is an end 40 elevation of theservice-tank and the pump and operating parts between said tank andpump; and Fig.3 is a view in sectional elevation, illustrative ofdetails of construction, to be hereinafter mentioned.

' In the drawings, A represents a forge or other furnace in which thehydrocarbon is to be burned. Y

B represents a supply orservice tank, which in practice is usually notfar from the fur- 5o nace, while the storage-tank (represented at SerialNo. 316,261. (No model.)

C) is usually placed for the purposes of safety at a considerabledistance from the furnace.

11 represents a pump, to a suitable portion of which is connected asuctioirpipe a, which leads thereto from the said oil-storage tank. Fromthe egress-passage of the pump a pipe b leads to the interior of theservice-tank.

The burner D, which may be, for instance, of the form described andshown in Letters Patent of the United States granted to me June 11,1889,numbered 404,955, has through it two passagesone for oil and a largerone for airand a pipe (Z, leading from the service-tank B below theoil-level therein, connects wit-h the oil-passage of said burner, whileto the air-passage of the said burner is connected a pipef, which leadsthereto from, an air-pump or air-compressor E, which is to becontinuously driven by any desirable form of motor. The said oil-pump H,for convey- 7o ing oil from the storage to the service tank is driventhrough the attachment with the piston-rod g of the said pump of aconnectingrod h, which is reciprocated by a cranked shaft 2', on whichshaft is a fixed pulleyk and also a loose pulley Z. The saiddriving-shaft i for the pump is rotated by means of a belt m, which isto be driven by any means, whether water, steam, or other motive power,as may best be adaptable to the circum- 8o stances attendant upon theworks in which the hydrocarbon system is employed.

A ball-float n is provided inside of the service-tank, which is carriedon a lever-arm 0, which by its one end is fixed on a rockershaft orarbor 1), having suitable hearings in the wall of the tank, and at oneside is projected through the tankwall beyond the outer surface thereof,and a crank arm or lever q is secured to such outwardly-project o ingportion of the rocker-shaft, to the outerend of which lever one end ofa'connecting-rod r is secured, which rod by its other end is attached toone arm 5 of a bell-crank lever,

there being secured on the other arm t of said 9 5 bell-crank lever abeltengaging hook or yoke a, which embraces said belt.

v In fitting up the hydrocarbon system the service-tank is preferablyplaced so that the desired oil-level therein will be about the T00 sameas that of the burner, and therefore, in order that the proper feedingor discharge of the oil maybe had toand through the burner, the air-pipewhich leads from the air-com pressor to the burner by a branch thereofalso leads to and has communication with the interior of saidservice-tank, so that a pressure will be maintained in the tankcorresponding to that supplied at the burner, and whereby the dischargeof oil from the service-tank t0 the burner may be insured.

The ball-float and its carrying-arm are provided with horns orextensions 1) 4;, whereby the movements of said ball-float in eachdirection of its swing are properly limited, so that no undue strainingaction will be brought upon any of the parts between said ball-float andbelt-shifter consequent upon excessive movements of the ball-float, asmight occur in the absence of said extensions.

In the operation of the apparatus, and assuming that the oil in theservice-tank is below the desired oil-level, having been expelledtherefrom by the air-pressure in the space in said tank above the oil,the ball-float in its depression operates the beltshifter to start upthe pump, which will continue to act to convey oil into saidservice-tank until the desired height of the oil level has beenreached,w hen the belt is automatically shifted to cause the cessationof the pumping action. The airwhich is supplied to the burner and alsoto'the air-space in the service-tank under a pressure which is to beregulated according to the use of or demands on the burner, according tosuch pressure regulates the supply of oil to the burners, for with amaximum degree of air-pressure supplied at the burner a correspondingand maximum degree of airpressure is present in the air-space in theservice-tank and a maximum amount of oil is caused to flow from saidservice-tank to the: burner; and it will thus be apparent that theregulation of the air-pressure also regulates the consumption of the oiland governsthe action of the automatic pumping mechanism.

hat I claim as my invention is- 1. An apparatus for securing the supplyand combustion of liquid fuel, comprising a hydrocarbon-burner havingoil and air a"- sages, a storage-tank, a service-tank, an oilpumpprovided with a fixed and a loose pulley on its driving-shaft, and adriving-belt around one of said pulleys, an inlet-conduit for saidoil-pum leading thereto from the said storage-tan and an outlet-conduitfor said pump leading therefrom to said servicetank, a float in saidservice-tank, and movable connections between said float and said belt,whereby on therise or fall of said float in the service-tank said beltmay be shifted from one to the other of said pulleys, an aircompressor,and a conduit leading therefroi'n tosaid burner, substantially asdescribed.

2. An apparatus for securing the supply and combustion of liquid fuel,comprising a hydrocarbon-burner having oil and air pas-- sages, astorage-tank, a service-tank so located that the normal oil-leveltherein will be the same as the level of the burner, an oil-pumpprovided with a fixed and aloose pulley on its driving-shaft, and adriving-belt around one of said pulleys, an inlet-conduit for saidoilpuinp leading thereto from the said storage tank, a float in saidservice-tank, and movable connections between said float and said belt,whereby on the rise or fall of the float in the serviee-tank said beltmay be shifted from one to the other of said pulleys, an aircompressor,and a conduit leading therefrom to said burner, and also a conduitleading from said air-compressor to the service-tank above the oiltherein, substantially as described.

JAMES Il. BULLARD. Vitnesses:

WM. S. lhtLLoWs, J. I). GARFIELD.

